Burkert Type 8644 - Manual (Page 29)

8644/phoenix - 25
S
YSTEM
D
ESCRIPTION
Technical data for the complete system
Voltage supply:
Rated voltage 24 V/DC
Tolerance - 15% / + 20%
Valve types 0460, 0461 - 10% / + 10%
Current carrying capacity:
Contacts max. 8 A
Valve block max. 2.5 A
(via connector module left)
Maximum current consumption:
Logic current I_Log = I_Log_FBKN + Σ I_Modul
I_Log Current consumption logic range
I_Log_FBKN proportional current in field bus nodes max. 1.25 A/DC
(0.75 A/DC for logic supply; 0.5 A/DC for analog voltage supply)
I_Module proportional current logic range of the elec. base module max. 15 mA
I_Valve Valve current - before and after power reduction
Valve type
Valve current
before power reduction after power reduction
6524 43 mA 26 mA
6525 43 mA 26 mA
6526 96 mA 48 mA
6527 96 mA 48 mA
0460 38 mA -
0461 38 mA
Temperature:
Storage temperature - 20 to + 60 °C
Field bus nodes Profibus DP (standard) 0 to + 55 °C
Valve type 6524, 6525, 6526, 6527 0 to + 55 °C
Valve type 0460, 0461 0 to + 50 °C
NOTE The admissible ambient temperature is depent on the modules used. During
assembly, the crucial factor is the most critical module.